Improvement in irrigation water use efficiency: a strategy for climate change adaptation and sustainable development of Vietnamese tea production

Nguyen Bich Hong, Mitsuyasu Yabe

研究成果: ジャーナルへの寄稿学術誌査読

20 被引用数 (Scopus)

抄録

Irrigation is indispensable to overcome insufficient rainfall and to achieve a stabilized yield for tea production. As the severe scarcity of water resources because of climate change, water conservation through efficient irrigation has turned into a vital strategy for tea sector in solving this rising challenge. This paper analyzes irrigation water use efficiency of small-scale tea farms in Vietnam and identifies its determinants applying stochastic frontier analysis. Results showed that under decreasing returns to scale, the mean irrigation water use efficiency was 42.19 %, indicating the existence of substantial water waste. If farmers become more efficient in using water, saving 57.81 % of irrigation water is possible unaccompanied by reducing the observed output. The factors affecting tea farms’ irrigation water use efficiency were investigated by Tobit model. Gender, water shortage awareness, soil and water conservation practice, off-farm income share, extension services access and well water utilization showed significant influence on the efficiency of irrigation water. The study’ results provide insights to policymakers in implementing better water resource management amid climate change.

本文言語英語
ページ(範囲)1247-1263
ページ数17
ジャーナルEnvironment, Development and Sustainability
19
4
DOI
出版ステータス出版済み - 8月 1 2017

!!!All Science Journal Classification (ASJC) codes

  • 地理、計画および開発
  • 経済学、計量経済学
  • マネジメント、モニタリング、政策と法律

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